Mountains would be a good example of this. While they do not have a straight rise, you can just take the average.
Ladders are another example. You can calculate the slope of a ladder to make sure it wont fall.
I hope this helped you understand about the uses of slopes in the real world! If this is confusing, don't be hesitant to drop a DM.
80 because tens place is two over from the right
If you mean 9% of 153 your answer is 13.77
The number of students grows by 600 per year
